description: The cardinality of Consent.source is 0..1. This extension allows adding additional sources to a Consent resource. Also see https://gforge.hl7.org/gf/project/fhir/tracker/?action=TrackerItemEdit&tracker_item_id=21224 for more package_name: nictiz.fhir.nl.stu3.zib2017 derivation: constraint name: Consent additionalSources type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/consent-additionalSources'} index: 0 value: choices: [valueAttachment, valueIdentifier, valueReference, valueReference, valueReference, valueReference] index: 2 valueAttachment: {type: Attachment, choiceOf: value, index: 3} valueIdentifier: {type: Identifier, choiceOf: value, index: 4} valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/Consent'] index: 5 package_version: 2.2.12 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/consent-additionalSources base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.2